Trap



Aug. 9, 1927. 'I 1,638,545

R. MUELLER ET AL TRAP Filed July 24. 1922 v 2 sheets-sheet 1 Pat-si-itedtuga 9, 192'?.

i or semi-solidgmaterial` being It-ripensa` mussten AND orrori, MUELLER, oF'oHIoAGo, ILLINOIS; y

Y TRAP.

Application filed.l u1y`24,

Our invention relates toiinprovements in traps and has special reference Vto traps fon ,removingmaterials such as' shells, fish, etc., yfrom a water supply.

. The object or our inventionis to provide a trap which'shall eifectually catch all solid carried by the` water; ,which shall bel capable of being emptied ordischarged' without the necessity of shutting` either the inletor the Aoutlet of the trap; and in which the' screenirshall divert the solid material and be washed free of other collected material such material and scum in the normal operation.l oi the trap, without the necessity off open'- ing thetrap for this purpose y 1n its `preferred form; our .invention rvresides in a suitable closed chamber through which the vwater passes from an inlet to an outlet, a diverting screen within the chamber throughA which the water Hows `and which tends to throw .any solid 'or'semr solid materials down into alowei" portion ot the trap, the screen being capableot` being moved without opening `the trap to cause the water to flow through samejina reverse direction and by which 'the screenlis washed Cil 'bodying our iiree et accumulation thereon.v

@ur invention will be more readily understood by reference -to the accompanyingv drawings forming part of this specification,- and in which :y y

' .Figure 1 is a side `elevation of a trap enr' Y invention in one form; l

Figure Q, is a vertical sectional view on the line 2-2 of Figure 1V; L i Figui-e 3 is a horizontal sectional view onV Ythe line 3-.-3 ot Figure 1;

Figure '4 is a vertical ycentral'sectional View on the line f4 loi"- Figure .2; and

Figure v5 is a view similar to 'Figure' 4. f yshowing a modified 'form of our inventiorn As shown-in thev drawings our francamprises a cylindrical casing lclosed at-one side .by a head2 andA 'at the other Aside* by a head 3. The casing is provided with an' inlet '-1 at one end oi the casing and with an outlet 5 at v.the other end. lWithin. the casing we'arrange a rotatable screenrinterpo'sed between the Thei'preterred Jorm of. screen Yconsists oit a plurality of radially extending` screens 6'.. ln the 'forni sliownfin Figure e1, there are three of these screens G'feq'uallyf spaced around an axial shaft 7.- The screens are as librous f of the horizontal diameter 1922. serial No. 576,932.

mounted in a framework consisting ofirings.V Y

ingand arranged one at each sidethereoii.

. These rings vare connected-,to a hubf9'fby .arinswlOtl l/lounted on this 'frame work are vindividual'frames 11 for-"the screens 6.y

'8 substantially equalv in diameter to the cas- 'The screens extend substantially across the.

casing and romthe hub to` theV periphery Vthereoi.. Below the. inlet 1, we arrange a. f

pocket 12 into which any 'solid orsemi-solid material carried by'tlielwater entering the inlet 4;' will be deflected bythe screensV 6. Y

At the lower end of the pocket we provide an outlet closedby a. valve 13 by which the contents oilA the pocketr can'be discharged.

^ W7 e provide meanswfor holding the screens in the preferred ypositions as shown in Fig# position abovethe inlet 4 and anotherot. the

screens intliis position consists ot a cam ure l withone of the screens t5 inginclined v member 1%1 rigidly mounted on the-outer eiiyd l i 15 of the sliait 7 andprovided with notches 16 in its peripheryjand adaptedV to receive a tooth 17 on `a Ypivoted *dog 18,-the dog? being adapted to tated from one positioi'ito the next' i-nth'e' di- -rect-ion y`or' the arrow 2()k shown onl3`i'gure.1

andV 21 shown onFigure 4. The outerv peripheryoif-'the cani between lthe notches is "eccentric s o-that the screen can `be turned.. y readily Vby slightlylitting the dog 18 to free its -tooth i'roin engaged position and tlienjas the Lcain'is turned, the spring will causev the 'v-tovoth tov enterjthe next notchV as soon as itffis reached.` v l be held. inengagen'ient with the cam by a springl-Q. llhenotches'l and the 'earn 1e arefarranged toghold the/screen member in the position:showninFigure y `and the screen'meinberisradapted-to be ro V through the screen ina reversedir'ectionto that in which it wasv lowing through the screen 1in inclined position above the' inlet'.-y

Consequently any material whi'chhaslodged against the vscree'nsuch as fibers or 'scuinwill be washed oil and discharged through the when the `screen reaches` its l11e valve 13 and.

`normal verticalposition just beyond the chamber 12, it will-have been cleared of such strained out material.y The vertical` screen j shown iii 'Figure l is washedfree of fibrous linatter inL a Very simple inaiiner by a reverse flow of the water. This is accomplished ,iii

practice by shuttingo the Vsupply of water and then opening the discharge Valve U13, whereupon the water contained in the sys; `teni supplied through this trap will flow bacltthrough the trap land bediscliai'ged through the discharge valve 13,. Y, yThis inethod of washing, aswill be seen, applies 'alsoto the forni of trapfsliown in Figure b.

Y' 'c fltshould be noted 'that the outlet of the trapr' is always-protected bythe screen eX- cept `possibly for a short period oft'iine'dui-` ing the Vrotation of the screen froin one position to tlienext, but .as `this changing of the screensl can be accomplished alinost instantly, substantially no` uiistrained waiter can escape' through the outlet.` lt'is to be noted,

however, that in practice no unscreened water kwouldflow through the trap for the reasonthat during the shiftingof the screen,

the discharge vValve should be `open and con-v sequently at such tiniel no water would be iio-wingto theV outlet 5.

In assembling the device, tliescreen can be placed.cnjthekiiiner end of the shaft V7 and alcotter pin Y being usedto cause the' scieennieinber to rotate with the shaft, and -it can then be entered -vinto the casing and after that, thelieadsaiid 8 can be secured "-.onthesides of the casing. y Y

rEhe shaft 7 projects through a suitable central opening" inthe head 3 and we proif `vide astuffer 22 of usual construction to ipreventthe Vescape of water at thispoint.'v` l:" Flie outer end El5 of the shaft 7y is preferably V'squared toreceive the'y cani 14;I and a suitable vset screw 23 inaybe providedto prevent the 'Y earn coming off of the shaft. v Y

.- `In Vthe forni of. device shown iiilfigure .Y screeny Qetlitting within k,the cylindrical cas- .inglpand iiiountedupon a central shaft asin thev otheirforni. ln'rorder to provide a 'pas- V `fsaeezof sutlic'ient size to permit the solid or senil-solid material to fall ldown freely, we

Vwiden. the catch chainber as shown atf25. vIt will be readily understood that the cylin drical screen Qcan be rotated to Various vpositions toplacedifl'erent portions ofits vperiphery in the path of the incoming water.

@The collecting` chamber l21is arranged beneath the inlet side -of tliewtrap so that the of January7 1922. j

portion vof the cylindrical screen exposed, extends in a 'downwardly inclined .relation to the direction ofthe flow of the incoming water, thusrbeing arranged in the best position for causing` any solid or seini-solid inatei'ial carried by the waterA to'be thrown dowiiviiito theV catch chamber.V It will be understood that we contemplate arranging suitable Valves contiolliiip' the" inlet and the ,outlet yso ythat when the discharge Valve is opened, the water can rbe inade to iiow throuffh the discharoev either back Vfrom the fia outlet or fdirectfroin the/inlet asinight be A desired in cleansing' the screen. @For instance, if the supplyrwere to be shut offvand.

the drain valve opened the water would flow baci; rroin the outlet tl'ijrough the trap and thuscause a reverse flow through Vthe por- ,ti'on Vofthe screen which has just been iii use-.and thereby free-it freni fibrous andotl-ier niat ialwliich inight tend to clog` the screen. Y

Vinflileinanncr, the lower vertical screens 5 in the forni of trap shown in -Figure d can be clv ansed before the screen rotated to av new position.`

n its inany niodiiicat-ioiisV of ourinvention` as a whole is n willieadily' suggest themselves to one skilled in the art, Vwe do not liinit or confine our iii'veiition to the specific details of construe'- tion oi' operation hereink shownaiid described.' l y t Ve claiin: c i Y I In a trap of the kind described, a cylindricalv Chamber, an inlet-'therefor andVv an outlet arranged in the cylindrical Wallandoppositely disposed, an axial shaft'iii the cliainber aV plurality of radially arranged '.'screens on the shaft, each extendingfroni thershaft tothe cylindrical wall, niea'ns'for retaining the shaft against rotation in predetermined positions, arspace at the lower vpart of vthe trap for receiving` screened out n'iaterial, a discharge .f'alve for 'said space,

one of said screens being); adapted to 'be arranged ininclined -relation tothel dircctiolir Voi' ifiow ofwaterthroughthe trap for deflectsolid'andsenii-solid inaterials inftoysaid space, tlienext successive screen below. the inclined screen being substantially verticali lyrv disposed, the inoveinent of the inclined y.sciieeii downwardly. to vertical position'causing a -ieveised flow ofl the lioluid through the screen as and for the' purpose specified, bigned at Chicago, `Illinois, this 18th day RUDOLPH Montese orro YL. Munten-n. y

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